- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°39'19"N 2°37'26"W
- Eastings/Northings: 356927, 195368
- OS Grid: ST569953
- Mapcode Local: GBR JP.6W3D
- Mapcode Global: VH87N.GNMB
Location and coordinates are for the approximate centre of Pillhouse Rocks within this administrative area.
Geographic features and populated places may cross administrative borders.